| Wild emmer wheat, the progenitor of common wheat, possesses some elite characters, can be used as important genetic resources in wheat improvement. To exploit elite gene resources of wild emmer wheat, a set of common wheat wild emmer chromosome arm introgression lines (ILs) were introduced from Weizmann Institute of Science in Israel, and were tested in two different experimental sites in one year. Three essential factors of grain weight (grain length, grain width and thousand kernel weight) were measured and used for QTL analysis, and eight positive QTLs controlling grain width were detected on chromosomes 3AS, 7AL, 5AS, 1BS, 7AS, 3BL, 2AL and 1BL separately, twelve positive QTLs on grain length on chromosomes 2AS, 7AL, 1BL, 4BS, 3AS, 7BS, 4BL, 7AS, 5BS, 2BS, 3AL and 6AS, and five positive QTLs related to thousand kernel weight on chromosomes 7AS, 4BS, 7AL, 1BS and 6AS. Correlation analysis indicated that grain length, grain width and thousand kernel weight were mainly influenced by genetic factor. Grain length and grain width showed high genetic correlation coefficients with grain weight. |
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